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[question] 2.0 trigger build for exact setting when a compatible copy exists in the cache

See original GitHub issue

Lets say I have a template cmake_lib project called math 😉
build it with conan create math -s compiler.cppstd=11 This will work, compiling the project on a clean system
build it with conan create math -s compiler.cppstd=14 This will not build – reports it’s already installed

Is it possible to circumvent this? If I want to generate multiple configurations must I upload and remove them each time?

$  conan create math --version 1.0 --build=math -s compiler.cppstd=14
Exporting the recipe
math/1.0: Exporting package recipe
math/1.0: Copied 1 '.txt' file: CMakeLists.txt
math/1.0: Copied 1 '.cpp' file: mymath.cpp
math/1.0: Copied 1 '.h' file: mymath.h
math/1.0 exports_sources: Copied 1 '.txt' file: CMakeLists.txt
math/1.0 exports_sources: Copied 1 '.cpp' file: mymath.cpp
math/1.0 exports_sources: Copied 1 '.h' file: mymath.h
math/1.0: Using the exported files summary hash as the recipe revision: 02fc9388fa48ee96ef5bc9976d653729
math/1.0: A new conanfile.py version was exported
math/1.0: Folder: /Users/christopherm/conan-whatsnew2/conan2_home/p/86f62652af2692bf/e
math/1.0: Exported revision: 02fc9388fa48ee96ef5bc9976d653729

-------- Input profiles --------
Profile host:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=14
compiler.libcxx=libc++
compiler.version=14
os=Macos

Profile build:
[settings]
arch=x86_64
build_type=Release
compiler=apple-clang
compiler.cppstd=11
compiler.libcxx=libc++
compiler.version=14
os=Macos


-------- Computing dependency graph --------
Graph root
    virtual
Requirements
    math/1.0#02fc9388fa48ee96ef5bc9976d653729 - Cache

-------- Computing necessary packages --------
math/1.0: Checking 11 compatible configurations:
math/1.0: '6bc1761873dc0e57d5456d7f5e7ac2e5bf7e250d': compiler.cppstd=98
math/1.0: '0cbbca71fa71c42e80adb683729a9e3962abdf75': compiler.cppstd=gnu98
math/1.0: 'd91e297436295aa4df7a6d6b6d2f4d6acb668bc5': compiler.cppstd=11
math/1.0: Main binary package '262d398523e3cf043e4616699660b816c5d41105' missing. Using compatible package 'd91e297436295aa4df7a6d6b6d2f4d6acb668bc5'
Requirements
    math/1.0#02fc9388fa48ee96ef5bc9976d653729:d91e297436295aa4df7a6d6b6d2f4d6acb668bc5#fd45b29df16590deb0c6101a12c4ca92 - Cache

-------- Installing packages --------

-------- Installing (downloading, building) binaries... --------
math/1.0: Already installed!

I’ve read the CONTRIBUTING guide.

Issue Analytics

State:
Created 10 months ago
Comments:5 (4 by maintainers)

Top GitHub Comments

1reaction

memshardedcommented, Nov 14, 2022

Oh, I see, yes, I think the semantics of --build=missing = “don’t build this binary if there is a valid one already existing”. And a “valid one” includes a compatible one.

0reactions

memshardedcommented, Nov 15, 2022

It seems that https://github.com/conan-io/conan/pull/12528 closes this question as solved, but let me know otherwise

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